Curtain holdback assembly



FIG. 1 shows a top perspective view of a curtain holdback assembly showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is another rear perspective view thereof;

FIG. 4 is another top perspective view thereof;

FIG. 5 is a top elevational view thereof;

FIG. 6 is a bottom elevational view thereof;

FIG. 7 is a left side elevational view thereof;

FIG. 8 is a right side elevational view thereof;

FIG. 9 is a front elevational view thereof; and

FIG. 10 is a rear elevational view thereof; and,

FIG. 11 is a perspective view of the item in an environment of use, the broken lines forming no part of the claim. 

CLAIM I claim the ornamental design for a curtain holdback assembly, as shown. 